Znachitel'noe chislo primenyaemyh v klinike protivoopuholevyh sredstv nedostatochno effektivno i bezopasno, chto obuslovlivaet poisk novyh lekarstvennyh substancij. Cel' raboty — izuchit' vliyanie digidrobromida 2-(3,4-digidroksifenil)-9-dietilaminoetilimidazo[1,2-a]benzimidazola (RU185) na rost i metastazirovanie perevivaemoj eksperimental'noj opuholi legkogo L'yuis (LLC). LLC privivali 55 mysham-samkam C57/Bl6 massoj 18–20 g podkozhno. Vnutrizheludochnoe (0,5 ml v sut.) vvedenie preparata nachinali cherez 48 ch posle perevivki opuholi 1 raz v sutki 10 dnej v razovyh dozah 50, 220, 500 mg/kg (gruppy 1, 2 i 3 sootvetstvenno). Mysham kontrol'noj gruppy vvodili fiziologicheskij rastvor. Pri vnutrizheludochnom vvedenii substancii proiskhodilo dostovernoe uvelichenie prodolzhitel'nosti zhizni zhivotnyh tol'ko v gruppe 2 (162,3%), a takzhe znachimoe umen'shenie ob"emov opuholi uzhe na 1-e sutki posle okonchaniya lecheniya. Na 7-e i 14-e sutki ot momenta okonchaniya lecheniya razmery opuholi v gruppah 2 i 3 byli snizheny po sravneniyu s kontrol'noj gruppoj v 3,4 i 1,3 raza (na 7-e sutki) i v 2,2 i 1,3 raza (na 14-e sutki) sootvetstvenno (r < 0,05). Indeks tormozheniya rosta opuholi sohranilsya v gruppe 2 k 14-m sutkam posle okonchaniya lecheniya i u 20% zhivotnyh otmechen regress opuholi. CHislo metastazov v legkih v gruppah 1 i 2 bylo snizheno otnositel'no kontrolya v 2,6 i 3,1 raza sootvetstvenno, a indeks ingibirovaniya metastazirovaniya sostavil 68,1 i 80% sootvetstvenno. Issledovannyj RU-185 okazyvaet protivoopuholevoe dejstvie, chto vyrazheno v uvelichenii prodolzhitel'nosti zhizni zhivotnyh, snizhenii skorosti rosta pervichnoj opuholi, a takzhe chastoty razvitiya i kolichestva legochnyh metastazov eksperimental'noj epidermoidnoj karcinomy legkogo L'yuis myshej.
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